JP2011183260A - Gas-liquid contact mechanism in apparatus for performing mass transfer or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technique for excluding the horizontal regulation of individual liquid distributors and ensuring the horizontal installation of the whole of the liquid distributors. <P>SOLUTION: A plurality of horizontal standard beams (101), which are made so that the common difference of height becomes about 0, are precedently incorporated in a tower (20) and fixed to the tower after horizontality is confirmed. The parts (40, 50, 60 and 61) of all of the liquid distributors are subsequently suspended from and fixed on the horizontal standard beams (101) and the regulation of horizontality at every part is excluded while the degree of horizontality of the whole of the liquid distributors is ensured. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention has an internal structure of regular packing or irregular packing, and includes a liquid distributor disposed in the upper part and a liquid collector disposed in the lower part, and mass transfer between gas and liquid, heat exchange or The present invention relates to a gas-liquid contact mechanism in an apparatus that performs mixing.

The trough-type liquid distributor arranged at the top was placed on a support ring in the tower, and leveling was performed for each trough using a liner plate and a shim plate.

The support ring that requires levelness is made of a horizontal flat bar, but the leveling is impaired by bending. If the tower diameter is within a certain range, straightening horizontal processing can be performed with a large planer. However, when the tower diameter is larger than that, straightening cannot be performed.

The support ring after bending processing that has been leveled is welded to the tower wall, and the horizontality is lost due to thermal distortion. There is no machine for straightening and leveling the support ring welded to the tower wall.

The leveling of the liquid distributor is a very important operation that affects not only the uniform liquid distribution of the liquid distributor but also the performance of mass transfer of the entire apparatus.

There was a space between the lower end of the liquid distributor and the uppermost part of the packing, and the structure did not hinder leveling.

There was enough space between the bottom of the packing and the liquid collector for the gas inlet

In order to increase the throughput of the apparatus, it is necessary to increase the input amount of liquid and gas. In particular, increasing the amount of gas input increases the speed of the rising gas. When the rising speed exceeds a certain level, droplets at the outlet of the liquid distributor are blown upward. This speed has been the limit of driving.

When the throughput of the apparatus is increased and the gas rising speed exceeds a certain level, the lowermost droplet of the filling is blown upward, that is, pushed back into the filling. When a certain liquid weight is reached, flooding occurs and operation becomes impossible.

The present invention has been considered in view of the problems of the individual leveling of the above-mentioned conventional liquid distributor, and priority is given to the horizontal mounting of the horizontal reference beam in the tower. The present invention intends to provide a technique for eliminating the horizontal adjustment of the liquid distributor and ensuring the horizontal installation of the entire liquid distributor.
The lower end of the liquid distributor and the top of the packing are connected by a liquid distribution adapter, and the lower end of the liquid collector and the packing are connected by a liquid collecting adapter to provide a technology that enables operation beyond the conventional limit. To do.

The gas-liquid contact apparatus in the apparatus for performing mass transfer and the like of the present invention that achieves the above object has the following configuration.

Configuration 1
All parts of the liquid distributor assembled in the tower are suspended and mounted on multiple horizontal reference beams, and the manufacturing tolerances of the horizontal reference plane of the suspended and mounted parts and the bottom line of the liquid distributor liquid outlet are zero. To make it close and install it in the tower, a plurality of horizontal reference beams made with a height tolerance of near zero are performed first, and fixed to the tower after checking the level. Next, all liquid distributor parts are suspended and mounted on a horizontal reference beam, eliminating the horizontal adjustment for each part and ensuring the level of the entire liquid distributor. Contact mechanism.

Configuration 2
In a device for performing mass transfer between gas and liquid, heat exchange or mixing, in which regular regular or irregular packing is installed, liquid distribution suspended one by one at each of the plurality of liquid outlets of the liquid distributor The adapter is brought into close contact with the upper surface of the packing, and the liquid distributors are arranged in parallel in the horizontal direction, and a secondary liquid distributor that supplies liquid to the liquid distributors is perpendicular to the liquid distributors. The widths of the plurality of liquid outlets of the secondary liquid distributor are adjusted so that the liquid is uniformly distributed from the lower liquid distributors according to the length of the lower liquid distributor, A suspension wire for supplying the liquid to the lower liquid distributor is arranged at each outlet, the upper part of the liquid collecting adapter is in close contact with the lower surface of the packing, and the lower part is connected to the liquid collecting part, and the gas outlet is the liquid distributing part. At the top of the vessel, with the gas inlet below the bottom of the packing The gas-liquid contact mechanism which is characterized.

Configuration 3
Multiple liquid distributors with suspended liquid distribution adapters are arranged in steps in the vertical direction of the device. In the horizontal section of each liquid distributor, each liquid distributor is placed on the same plane. A gas-liquid contact mechanism characterized in that a larger aperture ratio can be obtained.

According to the above configuration 1 of the present invention, all the parts of the liquid distributor assembled in the tower are suspended and overlaid on a plurality of horizontal reference beams, and the horizontal reference surface of the suspended and overlaid parts and the liquid distributor liquid The manufacturing tolerance of the lower end line of the exit is made close to 0, and the installation in the tower is performed with a plurality of horizontal reference beams made with a height tolerance close to 0 first, and fixed to the tower after checking the level. Next, all the liquid distributor parts are suspended and mounted on the horizontal reference beam, so as long as they are securely fixed, the level of all the liquid distributor parts is confirmed to be horizontal. Therefore, it is unnecessary to adjust the level of each part, and this step can be eliminated.

According to the above-described configuration 2 of the present invention, a liquid distribution adapter suspended one by one at each of a plurality of liquid outlets of the liquid distributor is brought into close contact with the upper surface of the filling, and the liquid distributors are arranged in parallel in the horizontal direction. And a secondary liquid distributor for supplying liquid to the plurality of liquid distributors is arranged at right angles to the plurality of liquid distributors, and the widths of the plurality of liquid outlets of the secondary liquid distributor are respectively lower liquids. The suspension is adjusted so that the liquid is distributed according to the length of the distributor, and a suspension wire for supplying the liquid to the lower liquid distributor is arranged at each outlet of the liquid, and the upper part of the liquid collecting adapter is placed on the lower surface of the packing. It has a structure in which the lower part is connected to the liquid collector.
That is, from the top of the tower, the secondary liquid distributor and the liquid distributor are connected by a suspension wire, the liquid distributor and the upper surface of the packing are connected by the liquid distribution adapter, and the lower surface of the packing and the liquid collector are the liquid collecting adapter. Because of the connected structure, even if the gas ascending speed to increase the throughput of the device increases beyond a certain level, the liquid in the secondary liquid distributor passes through the suspension wire, and the liquid in the liquid distributor passes through the liquid distribution adapter. The liquid on the lower surface of the object travels down the liquid collecting adapter and descends by the action of the capillaries, and is not blown upward. Therefore, an operation with an increased processing amount is possible.

According to the above-described configuration 3 of the present invention, the plurality of liquid distributors suspended from the liquid distribution adapter are arranged in steps in the vertical direction of the apparatus. In the case of the configuration 2 in which a large aperture ratio can be obtained as compared with the case where the distributors are arranged on the same plane, the liquid distributors are arranged in parallel in the horizontal direction, so that the aperture ratio in the horizontal section is about 50%. The velocity of the rising gas passing through here is about twice the velocity of the other cross section, that is, a rate of 100% increase. This configuration greatly improves this. The opening ratio in the case of the figure is about 90%, and the rising speed of the gas is only increased by about 10% in the other cross section. Driving significantly higher is possible.

It is an embodiment which shows the integration method in the column of a liquid distributor. It is sectional drawing which shows the conventional packed tower. It is sectional drawing which shows the packed tower of this invention. It is sectional drawing and a top view which show the packed tower of this invention. It is sectional drawing which shows the detail of this invention. It is a perspective view which shows the conventional liquid distributor.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 3 to 5 show an embodiment of a gas-liquid contact mechanism according to the present invention.

FIG. 1 is an embodiment showing a method of incorporating a liquid distributor into a column.

In the prior art, as shown in FIG. 6, the troughs 31-1 and 31-2 of the liquid distributor are mounted on a support ring 15 welded to the tower wall 10 and fixed. Leveling is performed by inserting a liner plate or shim plates 16 and 17 into the lower support ring and adjusting the level. As for the support ring, the original horizontal flat bar is also bent by bending, the horizontality is hindered, the tower wall is forced to weld strongly, and thermal distortion occurs. Thus, since the support ring welded to the tower wall is not horizontal, it is necessary to adjust the level of each trough of the liquid distributor to be attached.
This leveling work is very important and greatly affects the performance of the device itself, such as mass transfer.

The present invention has been considered in view of the problems of the individual leveling of the above-mentioned conventional liquid distributor, and priority is given to the horizontal mounting of the horizontal reference beam in the tower. The present invention intends to provide a technique for eliminating the horizontal adjustment of the liquid distributor and ensuring the horizontal installation of the entire liquid distributor.

Means for solving the problems are as follows.

The horizontal reference beams 101 of strength materials that support the entire load in the tower are basically subjected to collective cutting machining in order to make the upper surface, the lower surface, and the height equal (two in the illustrated embodiment). The lower surface of the L beam 102 that suspends them is also machined by cutting.

For installation in the tower, two L beams 102 are temporarily fastened to a lug 103 fixed by welding to the tower wall with bolts 104, and a plurality of horizontal reference beams 101 are suspended and fixed thereto with U bolts 105.

A level is applied to the horizontal reference beam 101, and the horizontal adjustment is performed with the long hole of the L beam 102 and the lug 103, and final fastening is performed. A plurality of fixed horizontal reference beams 101 that enable horizontal placement of all liquid distributors 40, 50, 60, 61.

The liquid distributors 60 and 61 suspended from the horizontal reference beam 101 are in contact with the upper surface 108 of the trough, and the distance between the lower end line 107 of the liquid outlet of the liquid distributors 60 and 61 and the trough upper surface 108 which is the horizontal reference surface. Must be made with a production tolerance close to zero.

The secondary liquid distributors 40 and 50 placed on the horizontal reference beam 101 are in contact with the lower surface 111 of the trough. It is required to make with.

For installation in the tower, that is, fixing the whole liquid distributor to the horizontal reference beam, the suspension tool 112 composed of the two U-bolts and the plate shown is suitable. The fixing of the all-liquid distributor eliminates steps such as leveling, and horizontal fixing can be obtained only by fixing with a U bolt.

The present invention not only ensures the horizontal installation of the liquid distributor, but also shortens the installation work in the column.

FIG. 3 is a cross-sectional view inside the packed tower of the present invention.

The liquid distribution adapter 72 suspended one by one at each of the plurality of liquid outlets of the liquid distributor 60 is extended and brought into close contact with the upper surface of the regular packing 82-1, and the liquid distributors 60 are arranged in parallel in the horizontal direction. A secondary liquid distributor 40 for supplying a liquid to the plurality of liquid distributors is arranged at right angles to the plurality of liquid distributors 60. Therefore, the space between the conventional liquid distributor and the upper part of the regular or irregular packing is connected by the liquid distribution adapter 72.

The upper part of the liquid collecting adapter 80 is brought into close contact with the lower surface of the regular and irregular packing 82-3, and the lower part thereof is connected to the liquid collecting unit 81. Accordingly, the space between the lower part of the conventional regular or irregular packing and the liquid collector 81 is connected by the liquid assembly adapter 80.
In the tower, the liquid distributor 60 to the liquid collector 81 are completely connected so that the liquid cannot fall freely.

The gas outlet 22 is above the liquid distributors 40 and 60, and the gas inlet 23 is below the lower end of the regular packing 82-3. This structure allows the gas rise rate to be maximized with increased throughput.

FIG. 4 is a cross-sectional view and a plan view in which liquid distributors are arranged in parallel in the horizontal direction.

In the sectional view a, one liquid distribution adapter 72 suspended at each liquid outlet of the liquid distributor 60 is brought into close contact with and connected to the upper surface of the regular packing 82-1.

In the plan view b, the secondary liquid distributor 40 is disposed at a right angle to the liquid distributor 60, and the widths of the plurality of liquid outlets of the secondary liquid distributor 40 are respectively adjusted to the length of the lower liquid distributor 60. A suspension wire 70 is arranged so that the liquid is uniformly distributed from each lower liquid distributor 60, and a suspension wire 70 for supplying the liquid to the lower liquid distributor 60 is disposed at each liquid outlet.
Twelve liquid distribution adapters 72-17 to 28 of the longest liquid distributor 60-3 are suspended.
Six liquid distribution adapters 72-1 to 72-6 of the shortest liquid distributor 60-1 are suspended.
The liquid outlets to the respective secondary liquid distributors 40 are 40c and 40a, and the width of the liquid outlet 40c can be designed to be twice the width of the liquid outlet 40a. The respective suspension wires 70-3 and 70-1 can be similarly designed. In this way, the present technology enables uniform liquid distribution over the entire section of the tower.

In FIG. 5, a plurality of liquid distributors 60 each having a liquid distribution adapter 72 suspended are arranged in steps in the vertical direction of the apparatus, and each liquid distributor is identical in the horizontal section of each liquid distributor. A structure in which a large aperture ratio can be obtained as compared with the case where they are arranged on a plane is shown.

In the case of the configuration 2, since the liquid distributors 60 are arranged in parallel in the horizontal direction, the opening ratio in the horizontal section is about 50%, and the speed of the rising gas passing therethrough is the speed of the other sections. The speed is about double, that is, about 100% increase. This configuration greatly improves this. The opening ratio in the case of the figure is about 90%, and the rising speed of the gas is only increased by about 10% in the other cross section. Driving significantly higher is possible.
Since the plan view is the same as the case of the parallel arrangement of the liquid distributor in the horizontal direction, it is omitted.
The design of the width of the liquid outlet of the secondary liquid distributor 40 is as described in the section of FIG. 4, but the major difference is that the suspension wire of the secondary liquid distributor 40 is positioned above and below the liquid distributor 60. It can be adjusted together. Although the illustrated suspension wire 70-5 is the longest, the liquid is distributed from the secondary distributor 40 to the liquid distributor 60-5 through the suspension wire 70-5. Moreover, the present technology has a structure in which the liquid distributor is arranged in a stepped arrangement so that the maximum rising gas velocity is possible, and even at this maximum gas velocity, the liquid can be distributed to the liquid distributor 60-5 without being blown upward. This is the strength of the capillary force of the suspension wire 70-5.

20 packed tower 21 liquid inlet 22 gas outlet 23 gas inlet 24 liquid outlet 40 secondary liquid distributor 50 secondary liquid distributor 60 liquid distributor 70, 71 suspension wires 72-75 liquid distribution adapter 80 liquid assembly adapter 81 Liquid collector 82 Regular packing 101 Horizontal reference beam 102 L beam 103 Lug 104 Bolt 105 U bolt 107 Lower end line 108 of liquid outlet of liquid distributor Horizontal reference plane (upper surface of suspension trough)
110 Lower end line 111 of liquid outlet of secondary liquid distributor Horizontal reference plane (lower surface of upper trough 112 Suspension tool

Claims (3)

All parts of the liquid distributor assembled in the tower are suspended and mounted on multiple horizontal reference beams, and the manufacturing tolerances of the horizontal reference plane of the suspended and mounted parts and the bottom line of the liquid distributor liquid outlet are zero. To make it close and to be installed in the tower, multiple horizontal reference beams made with a height tolerance close to zero are performed first, fixed to the tower after leveling, and then all the liquid distributor parts are A gas-liquid contact mechanism characterized in that the reference beam is suspended and overlaid and the level adjustment of each part is eliminated to ensure the level of the entire liquid distributor. In a device for performing mass transfer between gas and liquid, heat exchange or mixing, in which regular regular or irregular packing is installed, liquid distribution suspended one by one at each of the plurality of liquid outlets of the liquid distributor The adapter is brought into close contact with the upper surface of the packing, and the liquid distributors are arranged in parallel in the horizontal direction, and a secondary liquid distributor that supplies liquid to the liquid distributors is perpendicular to the liquid distributors. The width of the plurality of liquid outlets of the secondary liquid distributor is adjusted so that the liquid is distributed according to the length of the lower liquid distributor, and the lower liquid distributor is connected to each liquid outlet. A suspension wire for supplying the liquid is arranged, the upper part of the liquid collecting adapter is in close contact with the lower surface of the packing, the lower part is connected to the liquid collecting unit, and the gas outlet is at the upper part of the liquid distributor. 2. The gas according to claim 1, wherein the gas is below the lower end of the packing. Liquid contact mechanism. Multiple liquid distributors with suspended liquid distribution adapters are arranged in steps in the vertical direction of the device. In the horizontal section of each liquid distributor, each liquid distributor is placed on the same plane. 3. The gas-liquid contact mechanism according to claim 1, wherein a larger aperture ratio is obtained.

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